The simultaneous acquisition of Italian and English by a child living in Italy, the son of an American mother and Italian father, is discussed by his mother. In particular, the development of his vocabulary is analyzed. (Text is in Italian.) (CFM)

Preliminary version of this article presented at the meetings of the Society for Research in Child Development, Minneapolis, Minnesota, April 1971. Research and preparation of the paper supported in part by an Intramural Grant from the Regents of the University of California to T. Kenney. (VM)

Many researchers have assumed that adult bilinguals have separate systems for their two languages. Such an assumption raises interesting questions about how the two languages are acquired in the case of a child learning two languages simultaneously. This study attempts to determine whether the two languages are acquired separately right from the…

Speech discrimination by 12 children aged about 1 1/2 to 3 1/2 years was tested, using the discrimination learning procedure of Shvachkin's 1948 Russian study. Recent work on the acquisition of syntax and semantics shows an ordered acquisition for linguistic items; this pilot study was to test whether the ability to discriminate between consonants…

A study of data on Japanese children shows that the development of verbs occurs at the same time as the development of nouns and may even precede it. The subjects for the study were two children who were learning Japanese as their first language. Four speech samples, taken between the ages of 22 and 28 months, were audiotaped and supplemented by…

Reports on an experiment describing the lexical development of a hearing child with a deaf mother and hearing father. Data confirm previous findings that (1) sign emerges before spoken word, (2) acquisition stages are similar in ASL and spoken English, and (3) the child initially develops one lexical system. (Author/AM)

This paper reports on a longitudinal study of the acquisition of the voicing contrast in English word-initial stop consonants, as measured by voice onset time. Four monolingual children were recorded at two week intervals, beginning when the children were about 1;6. Data provided evidence for three general stages: (1) the child has no contrast;…

Examined overregularization of irregular verb forms in children's language learning. Found that overregularization errors are relatively rare; occur at a constant rate; and are not correlated with the proportion of regular verbs in parents' or children's speech. Also found that a period of correct performance precedes the child's first error. (BC)

A case study analyzed the babbling and speech production of an infant, aged 20 to 24 months, whose family members spoke Portuguese, English, and French interchangeably. Focus was on vowel production, choice of lexicon, and the relationship between babbling and speech in the interaction of his languages. The child's utterances were recorded in…

A study was conducted to compare the relative performance on yes-no questions of bilingual and monolingual children and to discuss the relationship of semantic development and linguistic development, both in the bilinguals and monolinguals. Eighteen English monolingual, eighteen Japanese monolingual, and eighteen Japanese-English bilingual…

Research was conducted to examine the language acquisition of a Mexican-American child who has been brought up in a linguistic environment where code-switching between Spanish and English is the dominant style of speaking. In addition, the relation of code- switching to the acquisition of bilingualism is analyzed. The speech of the subject, a…

A common assumption underlying cross-linquistic studies in child language is that the comparison of any feature in unrelated languages may simplify semantic-grammatical complexities in a way that studies on a single language cannot. This paper begins by discussing the order of acquisition of grammatical morphemes in Spanish by four…

This study is a detailed analysis of the phonological development of Sylvia, a bilingual child, in her acquisition of American English and Brazilian Portuguese from the age of 1 year, 7 months to 3 years, 8 months. The study is divided into four stages: ages 1.7 - 1.9; 1.9 - 2.1; 2.1 - 2.3; and 2.3 - 2.8. Up to the age of 1.9, the same…